RE: ASTRO: Sol-like system discovered

From: Spike (spike66@comcast.net)
Date: Mon Jul 14 2003 - 23:50:35 MDT

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    At 09:50 AM 7/14/03 -0700, Mike Lorrey wrote:

    >Look at the impact record, especially on the far side of the moon. If
    >the moon were not so significant, you'd see little variation between
    >the near side and far side impact records...

    The way I would interpret that observation
    is that on the far side, the moon-grazing debris
    has the moon's gravity plus the earths, whereas
    on the earth-facing side, the debris is seeing
    the moon's small gravity minus the earth's. Notice
    how close to the moon is the L1 LaGrange point.

    Ill do some calcs on it, but it still isn't at
    all clear to me that the presence of the moon
    has much affect on the number of rocks that
    make it here.

    spike



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